1. De-ice your locks with hand sanitizer.
Car locks can ice over in the winter. So squirt a little waterless hand sanitizer on your key and insert it in the lock. The same alcohol content that kills germs on dirty hands also melts away the ice in the lock.
2. Remove dents with dry ice.
The extreme cold of dry ice can help pop out dents. Pick some up at your local grocery store. Remember to pick it up with gloves, since dry ice can hurt your skin. Then apply it to the dent repeatedly until it’s gone.
3. Clean your engine with soap and water.
A spotless engine is easier to service. Clean it often with water and a little dishwasher detergent (degreaser works well, too). First, cover all the sensitive areas (electrical parts, battery, air intake, and distributor) with plastic bags, then scrub and rinse the engine with a soft rag. Remember to remove all plastic bags once you’ve cleaned all the necessary surfaces.
4. Fix scratches with nail polish.
Touch-up paint always works best, but if you’re in a pinch, clear nail polish helps to fill in scratches and cover up exposed metal to avoid rust.